antiphonal vs responsorial

antiphonal

noun
  • A book of antiphons or anthems sung or chanted at a liturgy; an antiphonary or antiphoner. 

  • An antiphon; a piece sung or chanted in an antiphonal manner. 

adj
  • Characterized by antiphones or antiphony; incorporating alternate, or responsive singing by a choir split into two parts. 

responsorial

noun
  • A book of liturgical responses 

adj
  • Responsive 

  • Of or pertaining to a response (in all senses) 

How often have the words antiphonal and responsorial occurred in a corpus of books? (source: Google Ngram Viewer )